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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1993-7-12
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pubmed:abstractText |
Wistar rats of a live weight of about 100 g received in 26 groups (4 animals/group) diets, each with a different lysine content. The rations given supplied the animals with 75%, 100% or 125% lysine of the calculated requirement. The source of protein in the diets was: barley (B), wheat (W), wheat gluten (WG), isolated soybean protein (assay protein) (S) or soybean meal (SM). For WG and S only the lysine levels 100% and 125% (SM = 116% and 125%) could be achieved. All diet groups were fed for 10 days with and without antibiotics (7 g Nebacitin/kg feed-DM). During the 7-day-period of the main experiment all 24 rations were supplemented with 0.5 g 15N-lysine/kg DM (48.3 atom-% 15N-excess, alpha-aminogroup 95% 15N-labelled). The nitrogen balance was improved only after feeding antibiotics with the diet S 100. It may be supposed that Nebacitin saved the second limiting amino acid methionine against microbial degradation in the digestion tract. The biological value (BV) of feed-proteins declined in the case of the diets B and W in the presence of antibiotics because the absorbed nitrogen was higher, this calculation basis for BV was therefore also higher without an improvement of the N-utilization. The 15N-excretion in faeces was significantly lower after feeding the diets B, W and WG with antibiotics. The 15N-excretion in urine was elevated in the most cases of the antibiotic supplement. The determination of a gross utilization of lysine and 15N-lysine resp. in relation to the lysine retention (availability) was not possible, neither using a labelling of diets with 15N-lysine.
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pubmed:language |
ger
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Bacitracin,
http://linkedlifedata.com/resource/pubmed/chemical/Dietary Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Glutens,
http://linkedlifedata.com/resource/pubmed/chemical/Lysine,
http://linkedlifedata.com/resource/pubmed/chemical/Nebacetin,
http://linkedlifedata.com/resource/pubmed/chemical/Neomycin,
http://linkedlifedata.com/resource/pubmed/chemical/Nitrogen,
http://linkedlifedata.com/resource/pubmed/chemical/Soybean Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Vegetable Proteins
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pubmed:status |
MEDLINE
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pubmed:issn |
0003-942X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
43
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
3-16
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:8512448-Administration, Oral,
pubmed-meshheading:8512448-Animal Feed,
pubmed-meshheading:8512448-Animals,
pubmed-meshheading:8512448-Bacitracin,
pubmed-meshheading:8512448-Diet,
pubmed-meshheading:8512448-Dietary Proteins,
pubmed-meshheading:8512448-Digestion,
pubmed-meshheading:8512448-Drug Therapy, Combination,
pubmed-meshheading:8512448-Feces,
pubmed-meshheading:8512448-Food, Fortified,
pubmed-meshheading:8512448-Glutens,
pubmed-meshheading:8512448-Hordeum,
pubmed-meshheading:8512448-Lysine,
pubmed-meshheading:8512448-Neomycin,
pubmed-meshheading:8512448-Nitrogen,
pubmed-meshheading:8512448-Rats,
pubmed-meshheading:8512448-Rats, Wistar,
pubmed-meshheading:8512448-Soybean Proteins,
pubmed-meshheading:8512448-Soybeans,
pubmed-meshheading:8512448-Triticum,
pubmed-meshheading:8512448-Vegetable Proteins,
pubmed-meshheading:8512448-Weight Gain
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pubmed:year |
1993
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pubmed:articleTitle |
[The determination of a gross utilization of 15N-lysine in laboratory rats. 2. Comparative testing with an antibiotic supplement to the diet].
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pubmed:affiliation |
Institut für Ernährungsphysiologie, Humboldt-Universität zu Berlin, Germany.
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pubmed:publicationType |
Journal Article,
Comparative Study,
English Abstract
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